CN213025637U - Inductance device, circuit board and air conditioner - Google Patents
Inductance device, circuit board and air conditioner Download PDFInfo
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- CN213025637U CN213025637U CN202022337502.7U CN202022337502U CN213025637U CN 213025637 U CN213025637 U CN 213025637U CN 202022337502 U CN202022337502 U CN 202022337502U CN 213025637 U CN213025637 U CN 213025637U
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Abstract
The utility model discloses an inductance device, circuit board and air conditioner. The inductance device is characterized in that two phase coils are respectively wound on the base posts on two sides of the magnetic core, so that a common mode inductance is formed; in addition, the first air gap is formed in the middle column, so that the uniformity of inductance can be improved; moreover, a middle column is arranged among the four base columns, and the middle column can provide a magnetic circuit for the two-phase coil of the first winding, so that a part of magnetic signals are not offset, the differential mode component of the inductance device can be increased, and the inhibiting effect on the differential mode signals is improved; and, through coiling the second winding on the center pillar, can realize the magnetic core sharing, be favorable to reducing the volume and occupy.
Description
Technical Field
The utility model relates to an inductance technical field especially relates to an inductance device, circuit board and air conditioner.
Background
The common mode inductor is one of the common devices of the current alternating current power supply circuit, and can play a role in filtering circuit interference, so that the working stability of the circuit is improved. However, in the existing common mode inductor design, the common mode inductor can only play a role in suppressing common mode noise, and the suppression effect on differential mode signals is small, so that the anti-interference capability of the common mode inductor is limited.
SUMMERY OF THE UTILITY MODEL
The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.
The embodiment of the utility model provides an inductance device, circuit board and air conditioner can promote the inhibitory action to the differential mode signal.
In a first aspect, an embodiment of the present invention provides an inductance device, including:
the magnetic core comprises four base columns which are sequentially connected end to form a closed structure, a middle column is arranged between the four base columns, and a first air gap is formed in the middle column;
the first winding comprises two-phase coils, and the two-phase coils are wound on the base pillars on two sides of the magnetic core respectively;
and the second winding is wound on the middle column.
The embodiment of the utility model provides an inductance device has following beneficial effect at least: two phase coils are respectively wound on the base posts on two sides of the magnetic core, so that a common mode inductor is formed; in addition, the first air gap is formed in the middle column, so that the uniformity of inductance can be improved; moreover, a middle column is arranged among the four base columns, and the middle column can provide a magnetic circuit for the two-phase coil of the first winding, so that a part of magnetic signals are not offset, the differential mode component of the inductance device can be increased, and the inhibiting effect on the differential mode signals is improved; and, through coiling the second winding on the center pillar, can realize the magnetic core sharing, be favorable to reducing the volume and occupy.
In some embodiments of the invention, the second winding comprises a single-phase coil or a multi-phase coil.
In the above technical solution, the second winding includes a single-phase coil or a multi-phase coil, and can be adapted to different input requirements respectively.
In some embodiments of the present invention, the first air gap is disposed between at least one end of the center pillar and the base pillar.
In above-mentioned technical scheme, with first air gap set up in the center pillar at least one end with between the foundation pillar, can be convenient for process, promote machining efficiency.
In some embodiments of the present invention, the first air gap is disposed between the two ends of the center pillar and the base pillar.
In the technical scheme, the two ends of the middle column and the space between the base columns are provided with the first air gaps, and compared with the situation that the first air gaps are only arranged between one end of the middle column and the base columns, the magnetic core is beneficial to reducing the volume of the magnetic core under the condition of achieving the same effect.
In some embodiments of the present invention, the center pillar includes a plurality of sections of pillars, and the adjacent ones are provided with a second air gap between the pillars, and the two ends of the center pillar are provided with the second air gap between the pillars.
In the technical scheme, the middle column is arranged into the multi-section column body, and compared with the arrangement of the first air gap, on the premise of realizing the same effect, the width of the second air gap can be smaller than that of the first air gap, so that the leakage inductance can be reduced, the eddy current loss of the inductor can be reduced, and the magnetic interference to the outside can be reduced.
In some embodiments of the invention, the second air gap is evenly distributed over the center pillar.
In the technical scheme, the second air gaps are uniformly distributed on the center pillar, so that the width of each second air gap can be smaller, the leakage inductance can be further reduced, the eddy current loss of the inductor can be reduced, and the magnetic interference to the outside can be reduced.
In some embodiments of the present invention, the center pillar is made of a powdered iron core material, and both ends of the center pillar are connected to the base pillar.
In the above technical scheme, because the iron powder core material has even air gap, therefore under the condition that the both ends of center pillar all are connected with the foundation pillar, also can reach the effect that promotes the homogeneity of inductance value to, even air gap can make the width of every air gap become littleer under the prerequisite that realizes same efficiency, thereby can further reduce the leakage inductance, reduce the eddy current loss of inductance, and can reduce the magnetic interference to external world.
In some embodiments of the present invention, the iron powder core material is one of iron powder core, sendust, high magnetic flux iron nickel or iron nickel molybdenum.
In a second aspect, an embodiment of the present invention further provides a circuit board, including the inductance device of the first aspect. Therefore, the circuit board according to the embodiment of the present invention forms the common mode inductor by winding the two phase coils on the pillars at both sides of the magnetic core respectively; in addition, the first air gap is formed in the middle column, so that the uniformity of inductance can be improved; moreover, a middle column is arranged among the four base columns, and the middle column can provide a magnetic circuit for the two-phase coil of the first winding, so that a part of magnetic signals are not offset, the differential mode component of the inductance device can be increased, and the inhibiting effect on the differential mode signals is improved; and, through coiling the second winding on the center pillar, can realize the magnetic core sharing, be favorable to reducing the volume and occupy.
In a third aspect, the embodiment of the present invention further provides an air conditioner, including the inductance device of the first aspect. Therefore, the air conditioner of the embodiment of the present invention forms the common mode inductor by winding the two phase coils on the pillars at both sides of the magnetic core respectively; in addition, the first air gap is formed in the middle column, so that the uniformity of inductance can be improved; moreover, a middle column is arranged among the four base columns, and the middle column can provide a magnetic circuit for the two-phase coil of the first winding, so that a part of magnetic signals are not offset, the differential mode component of the inductance device can be increased, and the inhibiting effect on the differential mode signals is improved; and, through coiling the second winding on the center pillar, can realize the magnetic core sharing, be favorable to reducing the volume and occupy.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the technical solutions of the present invention, and are incorporated in and constitute a part of this specification, together with the embodiments of the present invention for explaining the technical solutions of the present invention, and do not constitute a limitation on the technical solutions of the present invention.
Fig. 1 is a schematic structural diagram of an inductance device provided in an embodiment of the present invention (the second winding is a single-phase coil);
fig. 2 is a schematic structural diagram of an inductance device according to an embodiment of the present invention (the second winding is a two-phase coil);
fig. 3 is a schematic structural diagram of an inductance device according to an embodiment of the present invention (the second winding is a three-phase coil);
fig. 4 is a schematic structural diagram of an inductance device according to an embodiment of the present invention (first air gaps are simultaneously and respectively disposed between the upper end of the center pillar and the base pillar);
fig. 5 is a schematic structural diagram of an inductance device according to an embodiment of the present invention (a center pillar includes a multi-section cylinder and a second winding is a single-phase coil);
fig. 6 is a schematic structural diagram of an inductance device according to an embodiment of the present invention (a center pillar includes a multi-section cylinder and a second winding is a two-phase coil);
fig. 7 is a schematic structural diagram of an inductance device according to an embodiment of the present invention (a center pillar includes a multi-section cylinder and a second winding is a three-phase coil);
fig. 8 is a schematic structural diagram of an inductor device according to an embodiment of the present invention (the center pillar is made of a ferrite core material and the second winding is a single-phase coil);
fig. 9 is a schematic structural diagram of an inductor device according to an embodiment of the present invention (the center pillar is made of a ferrite core material and the second winding is a two-phase coil);
fig. 10 is a schematic structural diagram of an inductor device according to an embodiment of the present invention (the center pillar is made of a ferrite core material and the second winding is a three-phase coil).
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
It should be understood that in the description of the embodiments of the present invention, a plurality (or a plurality) is/are two or more, and more, less, more, etc. are understood as excluding the number, and more, less, more, etc. are understood as including the number. If the description of "first", "second", etc. is used for the purpose of distinguishing technical features, it is not intended to indicate or imply relative importance or to implicitly indicate the number of indicated technical features or to implicitly indicate the precedence of the indicated technical features.
Referring to fig. 1, the embodiment of the present invention provides an inductance device, which includes a magnetic core, a first winding and a second winding, wherein the magnetic core includes four pillars 101 connected end to end in sequence to form a closed structure, a center pillar 102 is disposed between the four pillars 101, exemplarily, the pillars 101 are in a shape of "square", the center pillar 102 is in a shape of "I", a first air gap 106 is disposed on the center pillar 102, the first winding includes two-phase coils, the two-phase coils are respectively wound on the pillars 101 on two sides of the magnetic core, and the second winding is wound on the center pillar 102. Specifically, the two-phase coil of the first winding includes a first coil 103 and a second coil 104, the first coil 103 is wound around the left-side base pillar 101, and the second coil 104 is wound around the right-side base pillar 101, so that the first coil 103 and the second coil 104 form a common mode inductance. Moreover, the first air gap 106 is arranged on the center pillar 102, so that the uniformity of inductance is improved; moreover, the center pillars 102 are arranged among the four base pillars 101, and the center pillars 102 can provide a magnetic circuit for the two-phase coil, so that a part of magnetic signals are not offset, the differential mode component of the inductance device can be increased, and the suppression effect on the differential mode signals is improved; in addition, the second winding is wound on the center pillar 102, so that the magnetic core can be shared, and the volume occupation can be reduced.
It will be appreciated that the second winding may comprise a single phase coil or a multi-phase coil. The inductive device shown in fig. 1 is a case where the second winding is a single-phase coil, that is, the single-phase coil of the second winding includes a third coil 105, and the third coil 105 is wound around the center leg 102.
Referring to fig. 2, the second winding may also include a two-phase coil, and the two-phase coil of the second winding includes a third coil 105 and a fourth coil 107, and the third coil 105 and the fourth coil 107 are wound around the center leg 102. Illustratively, the third coil 105 and the fourth coil 107 may be wound on the center pillar 102 in sequence from top to bottom.
Referring to fig. 3, the second winding may also include a three-phase coil including a third coil 105, a fourth coil 107, and a fifth coil 108, and the third coil 105, the fourth coil 107, and the fifth coil 108 are all wound on the center leg 102. Illustratively, the third coil 105, the fourth coil 107 and the fifth coil 108 may be wound on the center pillar 102 from top to bottom in sequence.
The second winding comprises a single-phase coil or a multi-phase coil and can be respectively suitable for different input requirements. It should be understood that the above is only for schematically illustrating the number of coils of the second winding, and actually, the number of coils of the second winding may be set according to the requirement, and the embodiment of the present invention is not limited thereto.
The first air gap 106 can be disposed at any position of the center pillar 102. Referring to fig. 1, it can be understood that the first air gap 106 is disposed between at least one end of the center pillar 102 and the base pillar 101. In the inductance device shown in fig. 1, the first air gap 106 is disposed between the upper end of the center pillar 102 and the pillar 101, and it can be understood that the first air gap 106 may also be disposed between the lower end of the center pillar 102 and the pillar 101, which is not limited by the embodiment of the present invention. The first air gap 106 is disposed between the two ends of the center pillar 102 and the pillar 101, so that the processing is facilitated and the processing efficiency is improved.
Referring to fig. 4, it can be understood that the first air gap 106 may also be simultaneously disposed between the upper end of the center pillar 102 and the base pillar 101, and between the lower end of the center pillar 102 and the base pillar 101, respectively, that is, the first air gap 106 is disposed between both ends of the center pillar 102 and the base pillar 101, and the first air gap 106 is disposed between both ends of the center pillar 102 and the base pillar 101, so that the volume of the magnetic core is reduced when the same effect is achieved, compared with the case where the first air gap 106 is disposed between only one end of the center pillar 102 and the base pillar 101.
Referring to fig. 5, the embodiment of the present invention provides an inductance device, which includes a magnetic core, a first winding and a second winding, wherein the magnetic core includes four pillars 101 connected end to end in sequence to form a closed structure, a center pillar 102 is disposed between the four pillars 101, exemplarily, the pillars 101 are in a shape of "square", the center pillar 102 is in a shape of "I", the center pillar 102 is disposed in the middle of the pillars 101, the first winding includes two-phase coils, the two-phase coils are respectively wound on two sides of the pillars 101, and the second winding is wound on the center pillar 102. The middle pillar 102 includes a plurality of pillars, a second air gap 109 is disposed between adjacent pillars, and the second air gap 109 is disposed between two ends of the middle pillar 102 and the pillar 101. Through setting the center pillar 102 as a multi-section pillar, compared with the first air gap 106, on the premise of realizing the same effect, the width of the second air gap 109 can be smaller than that of the first air gap 106, so that leakage inductance can be reduced, eddy current loss of inductance can be reduced, and magnetic interference to the outside can be reduced.
It can be understood that the second air gaps 109 are uniformly distributed on the center pillar 102, and since the second air gaps 109 are uniformly distributed on the center pillar 102, the width of each second air gap 109 can be made smaller, so that leakage inductance can be further reduced, eddy current loss of inductance can be reduced, and magnetic interference to the outside can be reduced.
It can be understood that the width of each section of column in the multi-section column may also be different, and the embodiments of the present invention are not limited.
Referring to fig. 6, in the case where the center leg 102 includes a multi-segment cylindrical body, the second winding may also include a two-phase coil, the two-phase coil of the second winding includes a third coil 105 and a fourth coil 107, and the third coil 105 and the fourth coil 107 are wound around the center leg 102. Illustratively, the third coil 105 and the fourth coil 107 may be wound on the center pillar 102 in sequence from top to bottom.
Referring to fig. 7, in the case where the center leg 102 includes a multi-segment cylindrical body, the second winding may also include a three-phase coil, the three-phase coil of the second winding includes a third coil 105, a fourth coil 107, and a fifth coil 108, and the third coil 105, the fourth coil 107, and the fifth coil 108 are all wound on the center leg 102. Illustratively, the third coil 105, the fourth coil 107 and the fifth coil 108 may be wound on the center pillar 102 from top to bottom in sequence.
Referring to fig. 8, the embodiment of the present invention provides an inductance device, which includes a magnetic core, a first winding and a second winding, wherein the magnetic core includes four pillars 101 connected end to end in sequence to form a closed structure, a center pillar 102 is disposed between the four pillars 101, exemplarily, the pillars 101 are in a shape of "square", the center pillar 102 is in a shape of "I", the center pillar 102 is disposed in the middle of the pillars 101, the first winding includes two-phase coils, the two-phase coils are respectively wound on two sides of the pillars 101, and the second winding is wound on the center pillar 102. The center pillar 102 is made of a powdered iron core material, and both ends of the center pillar 102 are connected to the foundation pillar 101. Because the iron powder core material has even air gap, therefore under the condition that the both ends of center pillar 102 all are connected with foundation pillar 101, also can reach the effect that promotes the homogeneity of inductance value to, even air gap can make the width of every air gap become littleer under the prerequisite that realizes same efficiency, thereby can further reduce the leakage inductance, reduce the eddy current loss of inductance, and can reduce the magnetic interference to the external world, under this condition, first air gap 106 is the even air gap that iron powder core material self exists.
In other embodiments, the center post 102 may be made of ferrite material.
It can be understood that the iron powder core material is one of iron powder core, iron silicon aluminum, high magnetic flux iron nickel or iron nickel molybdenum.
Referring to fig. 9, in the case where the center leg 102 is made of a ferrite core type material, the second winding may also include a two-phase coil, the two-phase coil of the second winding includes a third coil 105 and a fourth coil 107, and the third coil 105 and the fourth coil 107 are wound around the center leg 102. Illustratively, the third coil 105 and the fourth coil 107 may be wound on the center pillar 102 in sequence from top to bottom.
Referring to fig. 10, in the case where the center leg 102 is made of a ferrite core type material, the second winding may include a three-phase coil, the three-phase coil of the second winding includes a third coil 105, a fourth coil 107 and a fifth coil 108, and the third coil 105, the fourth coil 107 and the fifth coil 108 are wound around the center leg 102. Illustratively, the third coil 105, the fourth coil 107 and the fifth coil 108 may be wound on the center pillar 102 from top to bottom in sequence.
It is understood that the four pillars 101 may be integrally formed, or may be individually fixed to each other.
In addition, the embodiment of the utility model provides a still provide a circuit board, including above-mentioned embodiment inductance device. Therefore, the circuit board according to the embodiment of the present invention forms the common mode inductor by winding the two phase coils around the pillars 101 on both sides of the magnetic core; moreover, the first air gap 106 is arranged on the center pillar 102, so that the uniformity of inductance is improved; moreover, the center pillars 102 are arranged among the four base pillars 101, and the center pillars 102 can provide a magnetic circuit for the two-phase coil, so that a part of magnetic signals are not offset, the differential mode component of the inductance device can be increased, and the suppression effect on the differential mode signals is improved; in addition, the second winding is wound on the center pillar 102, so that the magnetic core can be shared, and the volume occupation can be reduced.
In addition, the embodiment of the utility model provides a still provide an air conditioner, including above-mentioned embodiment inductance device. Therefore, the air conditioner of the embodiment of the present invention forms the common mode inductor by winding the two phase coils on the base pillars 101 on both sides of the magnetic core respectively; moreover, the first air gap 106 is arranged on the center pillar 102, so that the uniformity of inductance is improved; moreover, the center pillars 102 are arranged among the four base pillars 101, and the center pillars 102 can provide a magnetic circuit for the two-phase coil, so that a part of magnetic signals are not offset, the differential mode component of the inductance device can be increased, and the suppression effect on the differential mode signals is improved; in addition, the second winding is wound on the center pillar 102, so that the magnetic core can be shared, and the volume occupation can be reduced.
It should also be appreciated that the various embodiments provided by the embodiments of the present invention can be combined arbitrarily to achieve different technical effects.
While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined by the appended claims.
Claims (10)
1. An inductive device, comprising:
the magnetic core comprises four base columns which are sequentially connected end to form a closed structure, a middle column is arranged between the four base columns, and a first air gap is formed in the middle column;
the first winding comprises two-phase coils, and the two-phase coils are wound on the base pillars on two sides of the magnetic core respectively;
and the second winding is wound on the middle column.
2. The inductive device of claim 1, wherein: the second winding includes a single-phase coil or a multi-phase coil.
3. The inductive device of claim 1, wherein: the first air gap is arranged between at least one end of the middle column and the base column.
4. The inductive device of claim 1, wherein: the two ends of the middle column and the space between the two ends of the middle column are provided with the first air gaps.
5. The inductive device of claim 1, wherein: the center pillar includes the multistage cylinder, and is adjacent be provided with the second air gap between the cylinder, the both ends of center pillar with be provided with between the foundation pillar the second air gap.
6. The inductive device of claim 5, wherein: the second air gap is uniformly distributed on the center pillar.
7. The inductive device of claim 1, wherein: the center pillar is made of iron powder core materials, and two ends of the center pillar are connected with the foundation pillar.
8. The inductive device of claim 7, wherein: the iron powder core material is one of an iron powder core, iron silicon aluminum, high magnetic flux iron nickel or iron nickel molybdenum.
9. A circuit board, characterized by: an inductive device comprising any one of claims 1 to 8.
10. An air conditioner, characterized in that: an inductive device comprising any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022337502.7U CN213025637U (en) | 2020-10-16 | 2020-10-16 | Inductance device, circuit board and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022337502.7U CN213025637U (en) | 2020-10-16 | 2020-10-16 | Inductance device, circuit board and air conditioner |
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| Publication Number | Publication Date |
|---|---|
| CN213025637U true CN213025637U (en) | 2021-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022337502.7U Active CN213025637U (en) | 2020-10-16 | 2020-10-16 | Inductance device, circuit board and air conditioner |
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| CN (1) | CN213025637U (en) |
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- 2020-10-16 CN CN202022337502.7U patent/CN213025637U/en active Active
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